Subj : Re: JavaScript problems with HttpUnit and JSF
To   : Michael Borgwardt
From : Igor Bukanov
Date : Wed Nov 24 2004 09:05 pm

Michael Borgwardt wrote:
> Hi!
>  
> I'm currently tring to use HttpUnit for writing system tests for a JSF 
> (java ServerFaces)
> application, and failing miserably. HttpUnit uses Rhino 1.5R4.1 for 
> executing JavaScript,
> and JSF uses JavaScript for navigation.
> 
> The result is invariably the same, see below. The Javascript function 
> looks OK to me,
> and the form and elements are definitely present in the page. Is this a 
> bug in Rhino
> or in HttpUnit?

AFAICS this is not a Rhino bug: the stack trace points to HttpUnit 
JavaScript bindings.

Regards, Igor

> 
> 
> 
> java.lang.NullPointerException
>     at 
> com.meterware.httpunit.TextFormControl$Scriptable.set(FormControl.java:793)
>     at 
> com.meterware.httpunit.javascript.JavaScript$JavaScriptEngine.put(JavaScript.java:275) 
> 
>     at org.mozilla.javascript.ScriptRuntime.setProp(ScriptRuntime.java:832)
>     at org.mozilla.javascript.gen.c1.call(httpunit:2)
>     at 
> org.mozilla.javascript.optimizer.OptRuntime.callSimple(OptRuntime.java:281)
>     at org.mozilla.javascript.gen.c2.call(httpunit:5)
>     at org.mozilla.javascript.gen.c2.exec(httpunit)
>     at org.mozilla.javascript.Context.evaluateReader(Context.java:773)
>     at org.mozilla.javascript.Context.evaluateString(Context.java:737)
>     at 
> com.meterware.httpunit.javascript.JavaScript$JavaScriptEngine.executeScript(JavaScript.java:132) 
> 
>     at 
> com.meterware.httpunit.scripting.ScriptableDelegate.runScript(ScriptableDelegate.java:65) 
> 
>     at 
> com.meterware.httpunit.parsing.ScriptFilter.getTranslatedScript(ScriptFilter.java:151) 
> 
>     at 
> com.meterware.httpunit.parsing.ScriptFilter.endElement(ScriptFilter.java:131) 
> 
>     at org.cyberneko.html.filters.DefaultFilter.endElement(Unknown Source)
>     at org.cyberneko.html.filters.NamespaceBinder.endElement(Unknown 
> Source)
>     at org.cyberneko.html.HTMLTagBalancer.callEndElement(Unknown Source)
>     at org.cyberneko.html.HTMLTagBalancer.endElement(Unknown Source)
>     at org.cyberneko.html.HTMLScanner$SpecialScanner.scan(Unknown Source)
>     at org.cyberneko.html.HTMLScanner.scanDocument(Unknown Source)
>     at org.cyberneko.html.HTMLConfiguration.parse(Unknown Source)
>     at org.cyberneko.html.HTMLConfiguration.parse(Unknown Source)
>     at org.apache.xerces.parsers.XMLParser.parse(Unknown Source)
>     at org.apache.xerces.parsers.DOMParser.parse(Unknown Source)
>     at 
> com.meterware.httpunit.parsing.NekoHTMLParser.parse(NekoHTMLParser.java:41)
>     at com.meterware.httpunit.HTMLPage.parse(HTMLPage.java:255)
>     at 
> com.meterware.httpunit.WebResponse.getReceivedPage(WebResponse.java:1126)
>     at 
> com.meterware.httpunit.WebResponse$Scriptable.load(WebResponse.java:688)
>     at 
> com.meterware.httpunit.javascript.JavaScript.load(JavaScript.java:89)
>     at 
> com.meterware.httpunit.javascript.JavaScriptEngineFactory.load(JavaScriptEngineFactory.java:58) 
> 
>     at 
> com.meterware.httpunit.RequestContext.runScripts(RequestContext.java:44)
>     at com.meterware.httpunit.WebWindow.getResponse(WebWindow.java:122)
>     at com.meterware.httpunit.WebWindow.updateWindow(WebWindow.java:144)
>     at 
> com.meterware.httpunit.WebWindow.getSubframeResponse(WebWindow.java:130)
>     at com.meterware.httpunit.WebWindow.getResponse(WebWindow.java:121)
>     at com.meterware.httpunit.WebClient.getResponse(WebClient.java:113)
>     at de.ovsag.cool.HttpTest.testHttpUnit(HttpTest.java:42)
>     at sun.reflect.NativeMethodAccessorImpl.invoke0(Native Method)
>     at 
> sun.reflect.NativeMethodAccessorImpl.invoke(NativeMethodAccessorImpl.java:39) 
> 
>     at 
> sun.reflect.DelegatingMethodAccessorImpl.invoke(DelegatingMethodAccessorImpl.java:25) 
> 
>     at java.lang.reflect.Method.invoke(Method.java:585)
>     at junit.framework.TestCase.runTest(TestCase.java:154)
>     at junit.framework.TestCase.runBare(TestCase.java:127)
>     at junit.framework.TestResult$1.protect(TestResult.java:106)
>     at junit.framework.TestResult.runProtected(TestResult.java:124)
>     at junit.framework.TestResult.run(TestResult.java:109)
>     at junit.framework.TestCase.run(TestCase.java:118)
>     at junit.framework.TestSuite.runTest(TestSuite.java:208)
>     at junit.framework.TestSuite.run(TestSuite.java:203)
>     at 
> org.eclipse.jdt.internal.junit.runner.RemoteTestRunner.runTests(RemoteTestRunner.java:421) 
> 
>     at 
> org.eclipse.jdt.internal.junit.runner.RemoteTestRunner.run(RemoteTestRunner.java:305) 
> 
>     at 
> org.eclipse.jdt.internal.junit.runner.RemoteTestRunner.main(RemoteTestRunner.java:186) 
> 
> java.lang.RuntimeException: Script 'function clear_linkDummyForm() {
>   var f = document.forms['linkDummyForm'];
>   f.elements['linkDummyForm:_link_hidden_'].value=null;
>   f.target='';
> }
> clear_linkDummyForm();
> //' failed: java.lang.NullPointerException
>     at 
> com.meterware.httpunit.javascript.JavaScript$JavaScriptEngine.handleScriptException(JavaScript.java:199) 
> 
>     at 
> com.meterware.httpunit.javascript.JavaScript$JavaScriptEngine.executeScript(JavaScript.java:136) 
> 
>     at 
> com.meterware.httpunit.scripting.ScriptableDelegate.runScript(ScriptableDelegate.java:65) 
> 
>     at 
> com.meterware.httpunit.parsing.ScriptFilter.getTranslatedScript(ScriptFilter.java:151) 
> 
>     at 
> com.meterware.httpunit.parsing.ScriptFilter.endElement(ScriptFilter.java:131) 
> 
>     at org.cyberneko.html.filters.DefaultFilter.endElement(Unknown Source)
>     at org.cyberneko.html.filters.NamespaceBinder.endElement(Unknown 
> Source)
>     at org.cyberneko.html.HTMLTagBalancer.callEndElement(Unknown Source)
>     at org.cyberneko.html.HTMLTagBalancer.endElement(Unknown Source)
>     at org.cyberneko.html.HTMLScanner$SpecialScanner.scan(Unknown Source)
>     at org.cyberneko.html.HTMLScanner.scanDocument(Unknown Source)
>     at org.cyberneko.html.HTMLConfiguration.parse(Unknown Source)
>     at org.cyberneko.html.HTMLConfiguration.parse(Unknown Source)
>     at org.apache.xerces.parsers.XMLParser.parse(Unknown Source)
>     at org.apache.xerces.parsers.DOMParser.parse(Unknown Source)
>     at 
> com.meterware.httpunit.parsing.NekoHTMLParser.parse(NekoHTMLParser.java:41)
>     at com.meterware.httpunit.HTMLPage.parse(HTMLPage.java:255)
>     at 
> com.meterware.httpunit.WebResponse.getReceivedPage(WebResponse.java:1126)
>     at 
> com.meterware.httpunit.WebResponse$Scriptable.load(WebResponse.java:688)
>     at 
> com.meterware.httpunit.javascript.JavaScript.load(JavaScript.java:89)
>     at 
> com.meterware.httpunit.javascript.JavaScriptEngineFactory.load(JavaScriptEngineFactory.java:58) 
> 
>     at 
> com.meterware.httpunit.RequestContext.runScripts(RequestContext.java:44)
>     at com.meterware.httpunit.WebWindow.getResponse(WebWindow.java:122)
>     at com.meterware.httpunit.WebWindow.updateWindow(WebWindow.java:144)
>     at 
> com.meterware.httpunit.WebWindow.getSubframeResponse(WebWindow.java:130)
>     at com.meterware.httpunit.WebWindow.getResponse(WebWindow.java:121)
>     at com.meterware.httpunit.WebClient.getResponse(WebClient.java:113)
>     at de.ovsag.cool.HttpTest.testHttpUnit(HttpTest.java:42)
>     at sun.reflect.NativeMethodAccessorImpl.invoke0(Native Method)
>     at 
> sun.reflect.NativeMethodAccessorImpl.invoke(NativeMethodAccessorImpl.java:39) 
> 
>     at 
> sun.reflect.DelegatingMethodAccessorImpl.invoke(DelegatingMethodAccessorImpl.java:25) 
> 
>     at java.lang.reflect.Method.invoke(Method.java:585)
>     at junit.framework.TestCase.runTest(TestCase.java:154)
>     at junit.framework.TestCase.runBare(TestCase.java:127)
>     at junit.framework.TestResult$1.protect(TestResult.java:106)
>     at junit.framework.TestResult.runProtected(TestResult.java:124)
>     at junit.framework.TestResult.run(TestResult.java:109)
>     at junit.framework.TestCase.run(TestCase.java:118)
>     at junit.framework.TestSuite.runTest(TestSuite.java:208)
>     at junit.framework.TestSuite.run(TestSuite.java:203)
>     at 
> org.eclipse.jdt.internal.junit.runner.RemoteTestRunner.runTests(RemoteTestRunner.java:421) 
> 
>     at 
> org.eclipse.jdt.internal.junit.runner.RemoteTestRunner.run(RemoteTestRunner.java:305) 
> 
>     at 
> org.eclipse.jdt.internal.junit.runner.RemoteTestRunner.main(RemoteTestRunner.java:186) 
>

.